I have qubes-tunnel set up and working on debian-10-minimal on R4.1. However the notifications do not appear. I have libnotify4 and libnotify-bin installed on template.
VPN is able to successfully connect, confirmed via AppVM and journalctl -u qubes-tunnel. however no notification that link is up.
@stumpi do you have any .crt (certificate) file related to PIA? If so, that needs to be moved to the qtunnel folder as well.